Multi-Camera Angle Previews Turn Black During Specific Timeline Sections

Premiere Pro Version: 26.5.2
Operating System: macOS Tahoe 26.5

Issue:

All camera angle previews in Multi-Camera View turn completely black during specific sections of the same multicam sequence, while other sections display normally.

The affected sections range from approximately 5 to 30 seconds.

Expected Result:

All available camera angles should display normally throughout the multicam sequence.

Actual Result:

• All angle previews simultaneously turn black during certain time ranges.

• Nine or more video clips are present and overlapping in some affected sections.

• Disabling Multi-Camera View restores normal video display.

• Switching camera angles still works.

• Final exports are unaffected.

• Other sections of the exact same multicam sequence display normally.

Troubleshooting Attempted:

• Restarting Premiere Pro

• Enabling and disabling Multi-Camera View

• Enabling and disabling proxies

• Reconnecting original media and proxies

• Disabling and re-enabling clips

• Testing the multicam source in a new sequence

• Duplicating the multicam sequence

• Temporarily applying and removing effects

• Exporting affected sections (exports are normal)

None of these steps resolved the issue.

Media:

• Original footage: 3840 × 2160, 29.97 fps

• Proxies: ProRes Proxy, 960 × 540

• Audio-synchronized multicam containing separately recorded takes

Impact:

This prevents me from viewing and comparing camera angles during affected sections, making multicam editing extremely difficult despite normal playback and export outside Multi-Camera View.

Please investigate and advise on a workaround.

I am suffering.. the edit is due tomorrow...